Radio frequency channel sharing method and related apparatus

Abstract

This application discloses methods and apparatuses for radio frequency channel sharing. An example method includes sending, by a terminal, first user equipment (UE) capability information to a network side device after receiving UE capability enquiry signaling that is sent by the network side device for a first subscriber identity module (SIM) card. The example method further includes sending, by the terminal, second UE capability information to the network side device after receiving UE capability enquiry signaling that is sent by the network side device for a second SIM card, wherein radio frequency capability information in the first UE capability information is the same as radio frequency capability information in the second UE capability information.

What is claimed is: 
     
         1 . A method for radio frequency channel sharing, comprising:
 sending, by a terminal, first user equipment (UE) capability information to a network side device after receiving UE capability enquiry signaling that is sent by the network side device and that is for a first subscriber identity module (SIM) card;   sending, by the terminal, second UE capability information to the network side device after receiving UE capability enquiry signaling that is sent by the network side device and that is for a second SIM card, wherein radio frequency capability information in the first UE capability information is the same as radio frequency capability information in the second UE capability information;   receiving, by the terminal, first radio resource control (RRC) connection reconfiguration signaling that is sent by the network side device and that is for the first SIM card, wherein the first RRC connection reconfiguration signaling instructs adding a secondary carrier for the first SIM card;   after adding the secondary carrier for the first SIM card in response to the first RRC connection reconfiguration signaling, receiving, by the terminal, a switching operation of switching a data service from the first SIM card to the second SIM card;   releasing, by the terminal, a radio frequency channel occupied by the secondary carrier of the first SIM card in response to the switching operation;   receiving, by the terminal, second RRC connection reconfiguration signaling that is sent by the network side device and that is for the second SIM card, wherein the second RRC connection reconfiguration signaling instructs adding a secondary carrier for the second SIM card; and   in response to the second RRC connection reconfiguration signaling, configuring, by the terminal, a radio frequency channel for the secondary carrier of the second SIM card, and adding the secondary carrier of the second SIM card.   
     
     
         2 . The method according to  claim 1 , wherein after the terminal receives the first RRC connection reconfiguration signaling, the method further comprises:
 determining, by the terminal based on a band combination of the secondary carrier in the first RRC connection reconfiguration signaling and a quantity of multiple-input multiple-output (MIMO) layers of each band, a radio frequency channel required by the secondary carrier of the first SIM card; and   in response to determining that a radio frequency channel that is not configured on the terminal comprises the radio frequency channel required by the secondary carrier of the first SIM card, configuring, by the terminal, the required radio frequency channel for the first SIM card, and adding the secondary carrier for the first SIM card.   
     
     
         3 . The method according to  claim 2 , wherein the adding, by the terminal, the secondary carrier for the first SIM card includes:
 finding, by the terminal through measurement, that a signal strength of a secondary cell of the first SIM card is a first value; and   sending, by the terminal, a first measurement report to the network side device by using the first SIM card, wherein the signal strength of the secondary cell of the first SIM card in the first measurement report is the first value, and the first measurement report triggers the network side device to add the secondary carrier for the first SIM card.   
     
     
         4 . The method according to  claim 2 , wherein the method further comprises:
 in response to determining that the radio frequency channel that is not configured on the terminal does not comprise the radio frequency channel required by the secondary carrier of the first SIM card, finding, by the terminal through measurement, that a signal strength of a secondary cell of the first SIM card is a first value; and   sending, by the terminal, a second measurement report to the network side device by using the first SIM card, wherein the signal strength of the secondary cell of the first SIM card in the second measurement report is a preset value, the preset value is less than the first value, and the second measurement report triggers the network side device to release the secondary carrier of the first SIM card.   
     
     
         5 . The method according to  claim 1 , wherein the method further comprises:
 reporting, by the terminal, a third measurement report to the network side device in response to the switching operation, wherein a signal strength of a secondary cell of the first SIM card in the third measurement report is a preset value, and the third measurement report instructs the network side device to release the secondary carrier of the first SIM card.   
     
     
         6 . The method according to  claim 1 , wherein after the terminal receives the second RRC connection reconfiguration signaling, the method further comprises:
 determining, by the terminal based on a band combination of the secondary carrier in the second RRC connection reconfiguration signaling and a quantity of MIMO layers of each band, a radio frequency channel required by the secondary carrier of the second SIM card; and   in response to determining that a radio frequency channel that is not configured on the terminal comprises the radio frequency channel required by the secondary carrier of the second SIM card, configuring, by the terminal, the required radio frequency channel for the second SIM card, and adding the secondary carrier for the second SIM card.   
     
     
         7 . The method according to  claim 6 , wherein the method further comprises:
 finding, by the terminal through measurement, that a signal strength of a secondary cell of the second SIM card is a second value; and   sending, by the terminal, a fourth measurement report to the network side device by using the second SIM card, wherein the signal strength of the secondary cell of the second SIM card in the fourth measurement report is the second value, and the fourth measurement report triggers the network side device to add the secondary carrier for the second SIM card.   
     
     
         8 . The method according to  claim 6 , wherein the method further comprises:
 in response to determining that the radio frequency channel that is not configured on the terminal does not comprise the radio frequency channel required by the secondary carrier of the second SIM card, finding, by the terminal through measurement, that a signal strength of a secondary cell of the second SIM card is a second value; and   sending, by the terminal, a fifth measurement report to the network side device by using the second SIM card, wherein the signal strength of the secondary cell of the second SIM card in the fifth measurement report is a preset value, the preset value is less than the second value, and the fifth measurement report triggers the network side device to release the secondary carrier of the second SIM card.   
     
     
         9 . The method according to  claim 1 , wherein before the terminal receives the switching operation, the first SIM card supports a first radio frequency capability, the second SIM card supports a second radio frequency capability, the first radio frequency capability is stronger than the second radio frequency capability, the radio frequency capability information in the first UE capability information is the first radio frequency capability, the radio frequency capability information in the second UE capability information is the first radio frequency capability, the first radio frequency capability comprises a capability of enabling the network side device to add a secondary carrier for the terminal, and the second radio frequency capability does not comprise the capability of enabling the network side device to add the secondary carrier for the terminal. 
     
     
         10 . The method according to  claim 1 , wherein the radio frequency capability information comprises a band combination supporting carrier aggregation (CA) and a quantity of MIMO layers of each band, and both the first UE capability information and the second UE capability information comprise one or more bandEUTRA information elements and a FeatureSet information element corresponding to each bandEUTRA information element, wherein the one or more bandEUTRA information elements indicate the band combination supporting CA, and the FeatureSet information element corresponding to each bandEUTRA information element indicates the quantity of the MIMO layers of each band. 
     
     
         11 . A terminal, wherein at least a first subscriber identity module (SIM) card and a second SIM card are installed on the terminal, the terminal comprises one or more processors and one or more memories, the one or more memories are coupled to the one or more processors, and the one or more memories store programming instructions for execution by the one or more processors to cause the terminal to perform operations comprising;
 sending first user equipment (UE) capability information to a network side device after receiving UE capability enquiry signaling that is sent by the network side device and that is for the first SIM card;   sending second UE capability information to the network side device after receiving UE capability enquiry signaling that is sent by the network side device and that is for the second SIM card, wherein radio frequency capability information in the first UE capability information is the same as radio frequency capability information in the second UE capability information;   receiving first radio resource control (RRC) connection reconfiguration signaling that is sent by the network side device and that is for the first SIM card, wherein the first RRC connection reconfiguration signaling instructs adding a secondary carrier for the first SIM card;   after adding the secondary carrier for the first SIM card in response to the first RRC connection reconfiguration signaling, receiving a switching operation of switching a data service from the first SIM card to the second SIM card;   releasing a radio frequency channel occupied by the secondary carrier of the first SIM card in response to the switching operation;   receiving second RRC connection reconfiguration signaling that is sent by the network side device and that is for the second SIM card, wherein the second RRC connection reconfiguration signaling instructs adding a secondary carrier for the second SIM card; and   in response to the second RRC connection reconfiguration signaling, configuring a radio frequency channel for the secondary carrier of the second SIM card, and adding the secondary carrier of the second SIM card.   
     
     
         12 . The terminal according to  claim 11 , wherein after the receiving the first RRC connection reconfiguration signaling, the operations further comprise:
 determining based on a band combination of the secondary carrier in the first RRC connection reconfiguration signaling and a quantity of multiple-input multiple-output (MIMO) layers of each band, a radio frequency channel required by the secondary carrier of the first SIM card; and   in response to determining that a radio frequency channel that is not configured on the terminal comprises the radio frequency channel required by the secondary carrier of the first SIM card, configuring the required radio frequency channel for the first SIM card, and adding the secondary carrier for the first SIM card.   
     
     
         13 . The terminal according to  claim 12 , wherein the adding the secondary carrier for the first SIM card includes:
 finding through measurement, that a signal strength of a secondary cell of the first SIM card is a first value; and   sending a first measurement report to the network side device by using the first SIM card, wherein the signal strength of the secondary cell of the first SIM card in the first measurement report is the first value, and the first measurement report triggers the network side device to add the secondary carrier for the first SIM card.   
     
     
         14 . The terminal according to  claim 12 , wherein the operations further comprise:
 in response to determining that the radio frequency channel that is not configured on the terminal does not comprise the radio frequency channel required by the secondary carrier of the first SIM card, finding through measurement, that a signal strength of a secondary cell of the first SIM card is a first value; and   sending a second measurement report to the network side device by using the first SIM card, wherein the signal strength of the secondary cell of the first SIM card in the second measurement report is a preset value, the preset value is less than the first value, and the second measurement report triggers the network side device to release the secondary carrier of the first SIM card.   
     
     
         15 . The terminal according to  claim 11 , wherein the operations further comprise:
 reporting a third measurement report to the network side device in response to the switching operation, wherein a signal strength of a secondary cell of the first SIM card in the third measurement report is a preset value, and the third measurement report instructs the network side device to release the secondary carrier of the first SIM card.   
     
     
         16 . The terminal according to  claim 11 , wherein after receiving second RRC connection reconfiguration signaling, the operations further comprise:
 determining based on a band combination of the secondary carrier in the second RRC connection reconfiguration signaling and a quantity of MIMO layers of each band, a radio frequency channel required by the secondary carrier of the second SIM card; and   in response to determining that a radio frequency channel that is not configured on the terminal comprises the radio frequency channel required by the secondary carrier of the second SIM card, configuring the required radio frequency channel for the second SIM card, and adding the secondary carrier for the second SIM card.   
     
     
         17 . The terminal according to  claim 16 , wherein the operations further comprise:
 finding through measurement, that a signal strength of a secondary cell of the second SIM card is a second value; and   sending a fourth measurement report to the network side device by using the second SIM card, wherein the signal strength of the secondary cell of the second SIM card in the fourth measurement report is the second value, and the fourth measurement report triggers the network side device to add the secondary carrier for the second SIM card.   
     
     
         18 . The terminal according to  claim 16 , wherein the operations further comprise:
 in response to determining that the radio frequency channel that is not configured on the terminal does not comprise the radio frequency channel required by the secondary carrier of the second SIM card, finding through measurement, that a signal strength of a secondary cell of the second SIM card is a second value; and   sending a fifth measurement report to the network side device by using the second SIM card, wherein the signal strength of the secondary cell of the second SIM card in the fifth measurement report is a preset value, the preset value is less than the second value, and the fifth measurement report triggers the network side device to release the secondary carrier of the second SIM card.   
     
     
         19 . The terminal according to  claim 11 , wherein before receiving the switching operation, the first SIM card supports a first radio frequency capability, the second SIM card supports a second radio frequency capability, the first radio frequency capability is stronger than the second radio frequency capability, the radio frequency capability information in the first UE capability information is the first radio frequency capability, the radio frequency capability information in the second UE capability information is the first radio frequency capability, the first radio frequency capability comprises a capability of enabling the network side device to add a secondary carrier for the terminal, and the second radio frequency capability does not comprise the capability of enabling the network side device to add the secondary carrier for the terminal. 
     
     
         20 . A non-transitory computer storage medium of and storing programming instructions for execution by one or more processors to cause a terminal device to perform operations comprising:
 sending first user equipment (UE) capability information to a network side device after receiving UE capability enquiry signaling that is sent by the network side device and that is for a first subscriber identity module (SIM) card;   sending second UE capability information to the network side device after receiving UE capability enquiry signaling that is sent by the network side device and that is for a second SIM card, wherein radio frequency capability information in the first UE capability information is the same as radio frequency capability information in the second UE capability information;   receiving first radio resource control (RRC) connection reconfiguration signaling that is sent by the network side device and that is for the first SIM card, wherein the first RRC connection reconfiguration signaling instructs adding a secondary carrier for the first SIM card;   after adding the secondary carrier for the first SIM card in response to the first RRC connection reconfiguration signaling, receiving a switching operation of switching a data service from the first SIM card to the second SIM card;   releasing a radio frequency channel occupied by the secondary carrier of the first SIM card in response to the switching operation;   receiving second RRC connection reconfiguration signaling that is sent by the network side device and that is for the second SIM card, wherein the second RRC connection reconfiguration signaling instructs adding a secondary carrier for the second SIM card; and   in response to the second RRC connection reconfiguration signaling, configuring a radio frequency channel for the secondary carrier of the second SIM card, and adding the secondary carrier of the second SIM card.